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ikrabbe ikrabbe
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6 years ago
Evaluate y: y =  (3x2 - x - 1) -  (5 - 2x - x2) for x = -3
Textbook 
Contemporary Business Mathematics with Canadian Applications

Contemporary Business Mathematics with Canadian Applications


Edition: 11th
Authors:
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wrote...
6 years ago
(3x2 - x - 1) -  (5 - 2x - x2)
=  [ 3(-3)2 - (-3) - 1 ] -  [ 5 - 2(-3) - (-3)2 ]
=  (27 + 3 - 1) -  (5 + 6 - 9)
=  (29) -  (2)
= 14.5 - 0.5
= 14.0
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